Bottle cap



FIG. 1 is a top, front, and left side isometric view of the bottle cap,embodying the new design;

FIG. 2 is a left side elevational view thereof;

FIG. 3 is a right side elevational view thereof;

FIG. 4 is a front elevational view thereof;

FIG. 5 is a back elevational view thereof; and,

FIG. 6 is a top plan view thereof.

The ornamental design for a bottle cap, as shown and described.